Altigen ACM 6.5 Administration Manual page 18

Overview
Secured VoIP Calls (TLS/SRTP)
Transport Layer Security (TLS) and Secure RTP (SRTP) are implemented to establish
secured SIP connections and encrypted conversations to prevent eavesdropping.
Secured connection can be configured for AltiGen IP phones and SIP-Tie trunks.
Enhanced 3rd Party IP Phone Support
Release 6.5 supports standard SIP Hold, Transfer, Call Waiting, and server-side
Conference for certified 3rd party SIP phones. This release also supports the Polycom
SoundStation IP6000 conference phone.
Microsoft Exchange 2007 Integration Enhancements
Release 6.5 expands the capability of Exchange 2007 Unified Messaging (UM) with the
following new features:
Option to enable voice mail synchronization in Bridged mode. You can use Bridged
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mode to access Exchange UM over SIP only or enable voice mail synchronization with
UM at the same time.
Native mode integration enhancements, namely, the ability to
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Return a call from Exchange voice mail
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"Zero out" of Exchange voice mail greeting to the operator
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Click "Play on Phone" option from Outlook 2007 to play the voice mail stored
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in Exchange
In addition, the AltiGen voicemail greeting is disabled when in Native mode.
PBX Enhancements
Station conference enhancements
The station conference bridge is released when the number of conference participants is
reduced to two. The call can then be transferred or parked. The conference bridge is
freed for other users.
MeetMe conference enhancements
Supports 120 MeetMe conference members in one bridge when using an HMCP MeetMe
conference resource. If the MeetMe conference has more than 30 members, by default
all the members are muted.
SIP Trunk Enhancement
Gives the ability to send the Transmitted Caller ID when the extension user makes a call
through a SIP trunk, if the SIP trunk service provider supports it.
Mobile Extension over SIP trunk
Allows you to deliver Mobile Extension features to a cell phone or a PSTN number over
a SIP trunk.
Ability to assign a Mobile Extension to a different trunk group
For systems with PSTN, SIP, or cell phone gateway as MobileExt trunks, you can assign
a MobileExt to use a specific trunk group to save toll charges.
Import and export an extension list from or to a CSV file
Helps speed up the process of creating extensions and configuring extension settings
after a system is configured.
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MAXCS ACM 6.5 Administration Manual